Class 12 Mathematics-Tips on Relations and Functions
Here are Tips in Mathematics which will give you an exact idea of the topics that you should prepare for in Relations and Functions-Class 12 Maths NCERT. This is keeping in mind the changes prescribed by the NCERT board for the academic year 2023-24. To start with, you need to know that 2 chapters, namely , Relations and Functions and Inverse Trigonometric Functions comprise this topic.
What is a Relation
The 3 basic examples of a Relation namely, the Universal Relation, Empty Relation and Identity Relation.
Types of Relations:Reflexive, Symmetric and Transitive
Equivalence Relations and Equivalence Classes
Types of functions- Injective and Surjective
In this context, you need to know a few important points such as:
Number of bijective functions from a finite set A to a finite set B.
Number of injective and surjective functions from a finite set A to a finite set B.
How to find the number of relations and functions from a set A to a set B.
Calculate the equivalence relations on a set containing 2 or 3 elements.
There are a number of free resources below in the form of Youtube videos and multiple choice questions, I encourage you to utilise these resources to the best of your ability.
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